Patent GB-210067-A (GB)
Title: Improvement in machine for forming sealed foil packages
IPC: B65B19/02
Filed: 1924-01-12
Abstract: 210,067. Conley Foil Co., (Assignees of Conley, E. J., and Whalen, E. J.). Jan. 17, 1923, [Convention date]. Packeting by wrapping-up.-Relates to a machine, for wrapping cigarettes &c., in which the cigarettes are enclosed in a paper wrapper, then hermetically enclosed in a foil wrapper, and preferably finally enclosed in a paper wrapper or pouch. The cigarettes are counted out and deposited upon a sheet of paper which is to form the first wrapper in the turret 92, Fig. 1, of the wrapping machine described in Specification 14013/13. After the preliminary wrapping, the packet arrives, beneath a spring-pressed plate 233, at the position at which it is to be ejected from the turret. The upper outstanding end flaps are folded down when the packet is raised from the pocket by a plunger 238, Fig. 2, acting on the plunger 100 and against the action of a gravity plunger 252. A member 251 on a sliding part 250 moves the packet radially outward from the turret 92 on to the floor of a guideway 254 with a hinged cover 255 with an upwardly flared edge 256. The sliding part 250 is actuated by links 260, 261 connected by springs 268 to a bellcrank lever loosely mounted on the same shaft 262. The bottom flaps are folded up by members 270. In the event of no packet being fed upwards by the plunger 238, the plunger 252 is therefore not raised and the feed of foil for subsequent wrapping operations is thereby stopped. As a result of the lateral feed of the packets, they arrive in succession at the point 300, Figs. 1 and 10. A plunger 301 with a soft tip 302 feeds the packet over a felttipped plate 310 and below a similar pivot member, and carries a severed sheet of tin foil with it from a guide 317 into a folding box 337. Springs 296 connected to chains 295 restrain the movement of the plunger 301 towards the end of the stroke. The lid 338 of the folding box is pivoted at 339 and the foil is folded upon the top and bottom of the packet by the advance of the latter, a feltcovered member tucking in the extending edges against the sides. A lower inclined folding member 341 and a similar upper folding member 342, Fig. 9, complete the folding of the sides of the packet. The packet is now folded except at one end and is driven into a pocket 343, Fig. 9, in a dial 344, a movable side 346 securing the packet against movement by moving outward against an inclined plane 347. Fusing irons 351 move laterally inwards against the overlapping flaps at the sides of the packet and fuse them, V-shaped recesses being provided at the ends so that contact is not made where there is a single thickness only of foil. The irons are otherwise designed on the same principle as those described in Specification 173,783. Folders move inwards to make the edge folds at the open ends of the packet, after which members 354, 354<a> operate successively, to complete enclosure of the packet in foil. The dial rotates anti-clockwise through a right-angle to bring the packet beneath a fusing iron 403 which descends and fuses the end flaps and completes the sealing of the foil package. Spring-supported plates move inwardly and engage the sides of the packets during the fusing to prevent distortion. A further rotation of a right-angle brings the packet to the position 432, at which the side wall 346 moves inwardly to loosen the packet. A plunger 433, Fig. 1, moves the packet along a shoot 440, of celluloid &c., to a position in the line of travel of a plunger 441, by which it is forced, with a third wrapper, into a pocket 483 in a wheel 484, Figs. 1 and 11. The third wrapper is of such a length that it forms a pouch-like covering only, one end being left uncovered, and the wrapper reaching to a position flush with this end. The packet is forced, with this wrapper, through a folding box, Figs. 1 and 11, a lid 467 of which is hinged at 468 and held in normal position by a spring 469. The sides are folded in a manner similar to that in which the second wrapper is applied in the folding box 337, and the packet is forced into a pocket 483 in a wheel 484 similar to the wheel 344, with the exception that the sides of the pockets are not movable. The wheels 344, 484 are synchronously operated and circular felt plates 485, 486, Fig. 1, hold the sides of the pouch together until adhesion has been effected. The packet is ejected into a guideway 487 by a lateral plunger 488, actuated synchronously with the plunger 433, and is removed from the machine. The Specification as open to inspection under Sect. 91 (3) (a) describes also the wrapping mechanism for applying the first wrapper to the cigarettes, which are fed from a hopper 77, Fig. 7 (Cancelled), by a belt 78 beneath an agitating wheel 88 and into a shoot 90, too great a pressure on the cigarettes at the bottom of the shoot being prevented by a spring 128, which is released at intervals. The cigarettes arrive upon spring supports beneath plungers 126, 135, Figs. 7 and 18 (Cancelled), and over the wrapper, which rests above a recess 69 in an intermittently rotating wheel or turret 92, and in which plungers 98, 99 operate. The plungers 126, 135 descend, and, when twenty cigarettes are to be wrapped together, carry down seven with the wrapper as shown in Fig. 18 (Cancelled). This operation is repeated to add seven more cigarettes to those lying on the wrapper, and the plunger 135 is not retracted on the return stroke so that only six cigarettes are fed by the plunger 126 at its third descent. The turret 92 carrying the pockets 69 is then rotated so that the pocket just filled is brought to the position IP, Fig. 1, the free ends of the cigarettes being aligned by the action of fingers 108. At this position, or the next, the operator may remove defective cigarettes and substitute perfect ones, the pockets being then readily accessible. At the third position, CP, the cigarettes are removed from the pockets, compressed to form a compact bundle, and then returned. The plungers 98, 99 rise as shown in Fig. 21 (Cancelled), the sheet of wrapping material being straightened out, a plunger 152 is moved inwards over the plunger 99 and the charge and wrapper are again depressed into the pocket 69, the plunger 99 being left in the raised position to decrease the size of the packet. When it is intended to insert a card in the packet, the card is fed over a table 186 by a plunger 188 before the compression. After compression, the packet passes under a plate 197, Fig. 1, which travels with it to the first folding position. The inner flap is folded on to the top of the cigarettes by a plate 209, Fig. 24 (Cancelled), which also carries plates 217 for making the first end folds. A plate 218, with one similar end folding plate, makes the second top fold and a second end fold. Swinging gates are moved up into position to hold the wrapping material in position as folded at the ends of the cigarettes, and the partially formed packet passes beneath a spring-pressed plate 233, Fig. 1, to the position at which it is to be ejected from the turret wheel. This subject-matter does not appear in the Specification as accepted.